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		<title>30. Exchange Item</title>
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		<h1 id="EXCHANGE_ITEM">EXCHANGE ITEM</h1>
		<h3 id="DEFINITION">DEFINITION</h3>
		<p>An Exchange Item describes a set of Data semantically coherent with regards to their usage in a given context:</p>
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			<li>same communication principles</li>
			<li>simultaneity of transportation</li>
			<li>same non functional properties (e.g. security level, integrity 	requirement, expected performance...)</li>
			<li>indivisibility (an Exchange Item is monolithic)</li>
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		<p>Exchange Items can be directly attached to Functional and Component Exchanges, directly attached to Function or Component Ports, or referenced by Interfaces (which are themselves provided/required by Component Ports).</p>
		<p>Possible communication mechanisms for Exchange Items are: OPERATION, EVENT, FLOW, SHARED DATA.</p>
		<h3 id="ICONS">ICONS</h3>
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